Letter-sheet envelop.



H. CLAUSEN. LETTER SHEET ENVELOP. APPLICATION FILED MAY 29, I916.

WITNESSES: I INVENTOR Her/mm Claus em 4 26%! m, 7 v A7T2D'RNE Y lib KHAN CLAUSEN, 0F SEATTLE, WASHINGTON, ASSIGNOR OF THREE-EIGHTHS TO WILLIAM D. TRIPPLE,

0F SEATTLE, WASHINGTON.

LETTER-SHEET ENVELOP.

Specification of Letters Patent.

Patented Jan. 15, 1918.

Application filed ma 29, 1916. Serial No. 100,559.

a To all whom it may concern:

Be it known that I, HERMAN (known, a citizen of the- United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Letter-Sheet Envelops, of which the following is a specification.

This invention relates to that class of stationery known as letter-sheet envelops.

The main object of my perfecting of such devices to render them more inexpensive, convenient and etlicient in use.

A further object is to provide a lettersheet envelop which is adapted to have the address and communication printed or written upon one side only of the sheet and when the sheet is folded and sealed the communication will be hidden from View while the address will appear on the outside of the letter. I

A still further object of the invention is to produce a letter-sheet envelop which may be readily closed or opened.

The invention consists in a letter-sheet which is perforated, gummed, and adapted to be folded in a peculiar manner, as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a face view of a representation of a form or sheet of paper involving my invention. Fig. 2 is a similar view of the same folded into letter shape and sealed. Fig. 3 is a perspective view of the letter as represented in Fig. 2 but with the removable strips shown partly torn away for opening the letter. Fig. 4 is a face View of the letter as it would appear when opened.

Referring now to Fig. 1, the numeral 5 designates a rectangular shaped sheet of aper of suitable size for the purpose for which designed.

At a short distance from, and parallel to each side edge 6, said'sheet is provided with a line of perforations indicated by 7. Two parallel lines of perforations, indicated by 8 and 9, are also provided adjacent to the lower edge 10 of the sheet.

The space between the line 8 and the lower edge 10 of the sheet is gummed with mucilage or other suitable adhesive material. The spaces between side edges 6 and the adjacent lines 7 of perforations for a distance from the lower edge 10, are similarly gummed,

invention is the as indicated by shading in Fig. 1; but the parts of such spaces near the upper edge of the sheet are unprovided with any gum.

The broken lines 11, Fig. 1, indicate where the upper portion 1:2 may be folded underneath the adjoining part 13 of the sheet for the purpose of reinforcing the latter and when thus used, the juxtaposed parts are pasted together to afford a two-ply upper end of the sheet, as clearly shown in Fig. 3.

To employ the sheet, the address is written or printed in the part 13 and the communication is inscribed therebelow on the same side of the sheet and within the space 1 1 which is bounded by the lines 7, 7 and 9. The sheet is then folded at approximately the line 15 and the gum in the spaces of one fold is moistened and brought against the opposing parts of the other fold, and becomes adhesively secured thereto. The sheet now appears as illustrated in Fig. 2, with the parts secured outside of the lines 7 and in the strip 16 above the line 8. Furthermore, the addressed part 13 is exposed while the part 11 carrying the message is hidden by being folded within the sheet.

To open the letter, the strips 17 at each side are torn off at the lines 7, as indicated in Fig. 3, and the strip 18 obtaining between the lines 8 and 9 is also torn away, as indicated in the referred-to view.

When the strips 17 and 18 have been torn from the sheet and the latter unfolded, it will appear as shown in Fig. 4, with a strip 16 remaining across the sheet and with edges 7 and 9 corresponding to the perforated lines 7 and 9 on the preceding views.

The address and message will also appear on the same side of the sheet.

The invention is of a simple nature and is readily understood and utilized. It may be used for a variety of purposes as, for example, letters, bills, statements and telegrams. It has all of the advantages afforded by the employment of individual lettersheets with envelops and by reason of the smaller quantity of paper stock, the cost is relatively low.

A further economy is provided by the present invention because the written or printed matter constituting all of the address and message, are produced upon but one side of a sheet.

What I claim, is-

1. A letter-sheet envelop consisting of a rectangular sheet having its upper end folded under and pasted to the central portion of the sheet and its lower end folded over such central portion so as not to cover the upper end of the latter, the border of the sheet at the lower edge being gummed for securing the lower fold to tion of the sheet.

2. A letter-sheet envelop, consisting of a rectangular foldable sheet havin gummed borders at its opposite sides am? its lower edge, lines of perforations vprovided in the sheet dividing the main portion of the latter from the respective borders, and a second line of perforations cooperatin with and parallel to the one associated wit the lower edge of the sheet to afford the sheet a trans- .verse tearing-out strip at a distance from the upper end of the folded sheet.

3. A letter-sheet envelop comprising a rectangular sheet havingits upper end folded the central por- 7 aforesaid gummed lower border of the u per fold will be brought against the said central portion of the sheet and above the edge of the aforesaid under fold at a distance from the top of the latter in order to provide thereon an exposed part of the sheet or anaddress, and render other portions of the same side of the sheet unexposed.

Signed at Seattle, Washington, this 16th day of May, 1916.

HERMAN CLAUSEN.

Witnesses: PIERRE BARNES, E. PETERSOQL, 

